overlay.js

!function(mod){"object"==typeof exports&&"object"==typeof module?mod(require("../../lib/codemirror")):"function"==typeof define&&define.amd?define(["../../lib/codemirror"],mod):mod(CodeMirror)}(function(CodeMirror){"use strict";CodeMirror.overlayMode=function(base,overlay,combine){return{startState:function(){return{base:CodeMirror.startState(base),overlay:CodeMirror.startState(overlay),basePos:0,baseCur:null,overlayPos:0,overlayCur:null,streamSeen:null}},copyState:function(state){return{base:CodeMirror.copyState(base,state.base),overlay:CodeMirror.copyState(overlay,state.overlay),basePos:state.basePos,baseCur:null,overlayPos:state.overlayPos,overlayCur:null}},token:function(stream,state){return(stream!=state.streamSeen||Math.min(state.basePos,state.overlayPos)<stream.start)&&(state.streamSeen=stream,state.basePos=state.overlayPos=stream.start),stream.start==state.basePos&&(state.baseCur=base.token(stream,state.base),state.basePos=stream.pos),stream.start==state.overlayPos&&(stream.pos=stream.start,state.overlayCur=overlay.token(stream,state.overlay),state.overlayPos=stream.pos),stream.pos=Math.min(state.basePos,state.overlayPos),null==state.overlayCur?state.baseCur:null!=state.baseCur&&state.overlay.combineTokens||combine&&null==state.overlay.combineTokens?state.baseCur+" "+state.overlayCur:state.overlayCur},indent:base.indent&&function(state,textAfter,line){return base.indent(state.base,textAfter,line)},electricChars:base.electricChars,innerMode:function(state){return{state:state.base,mode:base}},blankLine:function(state){var baseToken,overlayToken;return base.blankLine&&(baseToken=base.blankLine(state.base)),overlay.blankLine&&(overlayToken=overlay.blankLine(state.overlay)),null==overlayToken?baseToken:combine&&null!=baseToken?baseToken+" "+overlayToken:overlayToken}}}});